Littelfuse finaliza la línea de MCU eZ80: qué deben hacer diseñadores y compradores antes de diciembre de 2026

Littelfuse emite el PCN ZAC26-0074 que acepta los últimos pedidos de eZ80 hasta el 2026-12-21, con entregas que se reducen hasta 2027, cerrando el capítulo de la familia Z80.

Publicado Actualizado 4 min de lectura ✓ Listo para IA Compartir

TL;DR — tres frases

  • Littelfuse issued PCN ZAC26-0074 to accept final orders for the eZ80 and all other Littelfuse-owned MCU lines (S1).
  • Mouser has marked eZ80 parts as End of Life on its catalog (S1).
  • Final-order cutoff is 2026-12-21, with deliveries scheduled throughout 2027 (S1).

Tomado de key_takeaways (campo real, máx. 3 entradas). Los hechos y el análisis se etiquetan por separado.

Littelfuse finaliza la línea de MCU eZ80: qué deben hacer diseñadores y compradores antes de diciembre de 2026Editorial cover for a component sourcing brief. Chip motif; headline "Littelfuse finaliza la línea de MCU eZ80: qué deben hacer diseñadores y compradores antes de diciembre de 2026". No reported key numbers on this brief, so no number strip is drawn. 1 cited source. Static cover (no animation).Littelfuse finaliza la línea de MCUeZ80: qué deben hacer diseñadores ycompradores antes de diciembre de 2026XAIPART
Cover image generated from data already shown on this page: the category motif, the headline, and reported key numbers. No decorative illustration; no third-party image.

Llegó desde una respuesta de IA — este es el original verificable

Es posible que un resumen de IA haya omitido la base de sus afirmaciones. La previsión original, las piezas afectadas y cada cita están en esta página, cada una trazable hasta su fuente.

Previsión de XAIPART

Este breve incluye una previsión refutable.

Ir a la previsión completa y su regla de refutación ›
Piezas afectadas

No hay coincidencia en el catálogo para esta historia — no se muestra nada en lugar de inferir una coincidencia.

Vea cómo se decide ›
¿Busca una pieza? Envíe una solicitud → RFQ

Reported by Hackaday on . Summarized and analyzed by XAIPART Editorial.

What happened

Littelfuse, which owns the Zilog name, has notified customers through PCN ZAC26-0074 that it is accepting final orders for the eZ80 and all other microcontroller lines it currently holds.[S1] Distributor Mouser has correspondingly marked eZ80 parts as "End of Life" on its website.[S1]

This follows the earlier discontinuation of the original Z80 and its peripherals, leaving the eZ80 as the last Z80-family device in commercial production until now.[S1] One reader commenter dates the Z80 itself as 1974–2024 and the eZ80 as 2001–2026.[S1]

Final orders for affected parts will be accepted through , with final deliveries scheduled to take place throughout 2027 as the MCU manufacturing line winds down.[S1] For commercial users still specifying the eZ80 or similar Zilog devices, this effectively ends new-silicon availability.[S1]

Key numbers
MetricReported valueSource
PCN identifierZAC26-0074[S1]
Final-order cutoff date2026-12-21[S1]
Final-delivery windowThroughout 2027[S1]
Distributor status flagEnd of Life (Mouser)[S1]
Lines coveredeZ80 and all other Littelfuse-owned MCU lines[S1]
eZ80 production span (per source comment)2001–2026[S1]
Original Z80 production span (per source comment)1974–2024[S1]

Background timeline

  1. - Original Z80 enters production (date not disclosed by the source beyond the 1974–2024 lifespan cited in comments).
  2. - eZ80 successor family launches (year cited in source comments).
  3. - Original Z80 and its peripherals discontinued (per source comment dating the Z80 to 1974–2024).
  4. - Hackaday reports PCN ZAC26-0074 announcing final orders for eZ80 and other Littelfuse-owned MCU lines.
  5. - Final-order cutoff for eZ80 and remaining Littelfuse MCU lines.
  6. 2027 - Final deliveries to commercial customers as MCU line is wound down.

XAIPART take

Technical impact

Designs still targeting Z80-family silicon must now plan around a fixed-date obsolescence path: last buy by , with deliveries spread across 2027, so any re-spin or safety stock should be sized to that window. The eZ80's role as a drop-in modernized Z80 with on-chip peripherals made it attractive for legacy industrial and embedded systems; without new silicon, maintenance teams will need to consider FPGA soft-cores (open-source Z80 implementations exist, and the source notes TinyTapeout as a fab path) or alternative 8-/16-bit MCUs such as the Renesas RL78 that readers mention as ISA-adjacent. XAIPART analysis

Market impact

The PCN closes out the last commercially supported branch of the Zilog Z80 family, so distributor inventory will tighten fast as the 2026-12-21 cutoff approaches and unit pricing on the secondary market typically rises after EOL flags such as Mouser's. Buyers with field-deployed eZ80 designs should assume that after 2027 there will be no franchised-distribution channel for new units, only brokers and salvage stock, which raises both unit cost and counterfeit risk. XAIPART analysis

Action

Procurement should immediately pull a BOM report of every eZ80 and remaining Littelfuse/Zilog MCU line, confirm whether Mouser's EOL flag covers each MPN in use, and place a last-time-buy sized for the product's expected service life plus a safety buffer before . Engineering should in parallel evaluate an FPGA migration plan using an open-source Z80 core and verify second-source options such as the RabbitCore RCM2000 mentioned in source comments for designs that cannot be re-platformed. XAIPART analysis

XAIPART Forecast

XAIPART expects that, within 9 months of the 2026-12-21 cutoff (i.e., by Q3 2027), franchised-distributor on-hand stock of eZ80 MPNs at Mouser and peer catalogs will be reported at zero SKUs or shown only as obsolete with no buy button, because Littelfuse's stated deliveries are limited to orders placed before the cutoff and are scheduled throughout 2027. This forecast is wrong if Mouser still lists any eZ80 SKU as orderable past 2027-09-30. XAIPART analysis

Facts are as reported by the cited source. The design-in, sourcing and forward-looking statements above are XAIPART's analysis, not the source's claims. Unconfirmed or single-source items: the specific MPNs and per-part pricing of eZ80 variants affected, whether Littelfuse has issued any companion PCNs beyond ZAC26-0074, and the exact 2027 delivery cadence are not disclosed.

Corrections: none at publication. This brief will be updated with a timestamp if the source corrects its report.

Dated developments, extracted from this page's timeline (curated milestones = hollow markers).
Timeline of dated developmentsDated entries: 1974-01-01 - Original Z80 enters production (…; 2001-01-01 - eZ80 successor family launches (…; 2024-01-01 - Original Z80 and its peripherals…; 2026-10-11 - Hackaday reports PCN ZAC26-0074 …; 2026-12-21 - Final-order cutoff for eZ80 and ….1974-01-01- Original Z80 enters production (…2001-01-01- eZ80 successor family launches (…2024-01-01- Original Z80 and its peripherals…2026-10-11- Hackaday reports PCN ZAC26-0074 …2026-12-21- Final-order cutoff for eZ80 and …

Alternativas y ciclo de vida

Alternativas registradas — alcance del catálogo, no una clasificación de mercado
PiezaRelaciónCiclo de vidaBase
— No hay alternativa registrada FALTAN DATOS — Requiere match_type antes de que pueda aparecer cualquier etiqueta de predecesor

Las etiquetas «predecesor» y «alternativa» proceden únicamente de un tipo de coincidencia registrado, un estado del ciclo de vida o el texto de la fuente. Cuando no hay coincidencia registrada, no se muestra ninguna etiqueta. Nuestros propios anuncios no son una referencia de mercado.

Piezas afectadas

Sin coincidencia en el catálogo. Esta historia no se corresponde con ninguna pieza listada actualmente en XAIPART. No inferimos coincidencias ni mostramos una lista de marcador de posición.

Presión de costes por dimensión

Source: FRED · Generated · reference output z and composite are algorithm outputs, not a fetch snapshot

Cost pressure by dimension — composite stateDiverging bars for three dimensions around a zero midpoint. Input Cost has no reading; Supply Demand z -1.4711, notable; Fx Energy z 0.2546, neutral. Composite index -9.1, band neutral.0Input costno readingSupply/demandz −1.4711 · notable46 dFX & energyz +0.2546 · neutral5 dcomposite −9.1 · neutral−100 · −40 · −15 · 0 · +15 · +40 · +100
Underlying values — copyable for verification.
DimensionFRED series IDUnitLagAs of
Input costPCOPPUSDM, PALUMUSDM, PNICKUSDMUSD/mt52 d
Supply/demandPCU334413334413, IPG3344Sindex(1982=100) / index(2017=100)46 d
FX & energyDEXCHUS, DCOILBRENTEU, DHHNGSPrate / USD/bbl / USD/MMBtu5 d

No free authoritative interface for: gold · silver · rare earth · polysilicon · lithium carbonate · market share — listed rather than approximated.

Cómo se elaboró

Evidencia del proceso — obtención, verificación de fuentes, modelo y filtro
Registro de auditoría de este breve
Source fetched Hackaday · hackaday.com · 5,994 chars
Source sanity (S1) ok — passed before any model call (no s1_ block recorded)
Model / prompt MiniMax-M3 · prompt Blog Agent - News Summary (v2.8-final) · 7,447 tokens · 27.5s · run completed
Gate verdict hold · 6/6 applicable checks passed · spec v2.9 · C10 ratio 0.012311 · C10 rounds 0
Time contract 9 <time datetime> values in this brief — 0 violations (+08:00 or date-only)

Cada fila anterior la produce el flujo de trabajo, no se escribe a mano.

Puntuación editorial

Resultado del filtro determinista — PHP puro, sin intervención del modelo en el veredicto
Desglose de la puntuación del filtro 6 comprobaciones aplicables, 6aprobadas: 100 %. Hold items: C3(insufficient_evidence), C13 (falsifiable forecast) — sent to human review. Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.5342. Comprobaciones aplicables superadas 6 / 6 = 100% · veredicto: hold Hold items: C3(insufficient_evidence), C13 (falsifiable forecast) — sent to human review Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.5342 El filtro decide la publicación. La puntuación de la auditoría independiente es solo consultiva.

Cobertura relacionada

¿Ha encontrado un error? Díganos qué está mal — las correcciones se publican junto al texto original y se registran. No editamos los artículos en silencio.

Comentarios

Sea el primero en comentar.

Fuentes

  1. Littelfuse Announces Retirement Of The EZ80 — https://hackaday.com/2026/10/11/littelfuse-announces-retirement-of-the-ez80 · rss · consultado

Los hechos están marcados como S1/S2 y se remontan a la fuente enlazada. Los pasajes etiquetados análisis son el razonamiento propio de XAIPART, mantenido separado de los hechos reportados. Se siguen los enlaces de las fuentes en lugar de nofollow — la atribución es intencionada.